Interface-Confined Cavitation at an MXene/TiO₂ Schottky Heterointerface for Non-Thermal Juice Preservation.
5 affiliations
- 1Key Laboratory of Arable Land Quality Monitoring and Evaluation (Yangzhou University), Ministry of Agriculture and Rural Affairs, School of Environmental Science and Engineering, Yangzhou University, Yangzhou, China.
- 2Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, College of Tourism and Culinary Science, Yangzhou University, Yangzhou, China.
- 3School of Computer and Electronic Information, Nanjing Normal University, Nanjing, China.
- 4College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China.
- 5Food Safety and Nutrition Experimental Teaching Demonstration Center, College of Food Science and Engineering, Xinjiang Institute of Technology, Aksu, Xinjiang, China.
Abstract
Non-thermal food preservation demands catalytic platforms that achieve potent antimicrobial efficacy without compromising heat-labile nutrients. Yet whether a sonocatalyst merely seeds bubble nucleation or actively channels transiently concentrated acoustic energy into chemical work has remained unresolved, and the violent, opaque nature of cavitation further precludes operando observation of catalyst surfaces. Herein, an MXene/TiO₂ Schottky heterointerface is engineered with the aim of localizing cavitation collapse at the catalyst-liquid boundary through three cooperatively acting determinants: a built-in electric field for charge separation, hierarchical surface roughness for energy focusing, and pre-existing oxygen vacancies for dynamic defect modulation. A convergent multi-proxy evidence chain, comprising passive cavitation imaging, single-bubble computational fluid dynamics, chronoamperometry, quasi-in situ spectroscopy, and ab initio molecular dynamics (AIMD), supports a working model of this interface-confined cavitation regime. Under 40 kHz ultrasound without external heating, the interface delivers 3-log inactivation of the tested indicator bacteria (E. coli and S. aureus) at the laboratory scale, while preserving 82% of vitamin C and 88% of total anthocyanin content in juice. This work thus proposes interface-confined cavitation as a transferable design rationale for sonocatalytic interfaces, with operando validation of the active interface as the decisive next step.
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BibTeX
@article{wu2026interfaceconfined,
title = {{Interface-Confined Cavitation at an MXene/TiO₂ Schottky Heterointerface for Non-Thermal Juice Preservation.}},
author = {Xiaoge Wu and Yunxiao Zhu and Nan Qin and Zhaoli Zhang and Qi Zhang and Yang Tao},
journal = {Advanced science (Weinheim, Baden-Wurttemberg, Germany)},
year = {2026},
month = oct,
doi = {10.1002/advs.78536},
url = {https://europepmc.org/article/MED/42952146},
note = {CC BY},
}
RIS
TY - JOUR
TI - Interface-Confined Cavitation at an MXene/TiO₂ Schottky Heterointerface for Non-Thermal Juice Preservation.
AU - Xiaoge Wu
AU - Yunxiao Zhu
AU - Nan Qin
AU - Zhaoli Zhang
AU - Qi Zhang
AU - Yang Tao
PY - 2026
DA - 2026/10/28
JO - Advanced science (Weinheim, Baden-Wurttemberg, Germany)
DO - 10.1002/advs.78536
UR - https://europepmc.org/article/MED/42952146
AB - Non-thermal food preservation demands catalytic platforms that achieve potent antimicrobial efficacy without compromising heat-labile nutrients. Yet whether a sonocatalyst merely seeds bubble nucleation or actively channels transiently concentrated acoustic energy into chemical work has remained unresolved, and the violent, opaque nature of cavitation further precludes operando observation of catalyst surfaces. Herein, an MXene/TiO₂ Schottky heterointerface is engineered with the aim of localizing cavitation collapse at the catalyst-liquid boundary through three cooperatively acting determinants: a built-in electric field for charge separation, hierarchical surface roughness for energy focusing, and pre-existing oxygen vacancies for dynamic defect modulation. A convergent multi-proxy evidence chain, comprising passive cavitation imaging, single-bubble computational fluid dynamics, chronoamperometry, quasi-in situ spectroscopy, and ab initio molecular dynamics (AIMD), supports a working model of this interface-confined cavitation regime. Under 40 kHz ultrasound without external heating, the interface delivers 3-log inactivation of the tested indicator bacteria (E. coli and S. aureus) at the laboratory scale, while preserving 82% of vitamin C and 88% of total anthocyanin content in juice. This work thus proposes interface-confined cavitation as a transferable design rationale for sonocatalytic interfaces, with operando validation of the active interface as the decisive next step.
SN - 2198-3844
ER -